Mabcus edwaed hawkins



Patented Dec. 29, 1885..

M. E. HAWKINS.

DEVICE FOR UPSETTING THE ENDS 0F METAL PIPES. No. 333,410.

(No Model.)

r WITNESSES N PEIERS, FIND-Lithograph", Walhillshn, B. Q Q I ,NIT'EDSTATES MARCUS EDWARD HAWKINS, OF LANSINGBURG, NEW YORK.

DEVICE FOR UPSETTING THE ENDS OF METAL'PIPES.

SPECIFICATION forming part of Letters Patent No. 333,410, dated December29, 1885.

Application filed May 14, 1885.

T 0 all whom it may concern:

Be it known that I, MARCUS E. HAWKINS, a citizen of the United States ofAmerica, re siding at Lansingburg, in the county of Bensselaer and Stateof New York, have invented certain new and useful Improvements in Devices for Upsetting the Ends of Metal Pipes; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to whichit appertains tomake and use the same, reference being had to the accompanying drawings,and to letters or figures of reference marked thereon, which form a partof this specification.

My invention relates to certain new and useful improvements inimplements for upsetting the ends of metal pipes so that they can beattached to couplings; and to this end my invention consists in theconstruction of pliers which are adapted to be used in connection with ablock having a follower with a conical head.

My invention also consists in the specific construction and combinationof the parts, as will be hereinafter fully set forth, and specificallypointed out in the claims.

In the accompanying drawings, which illustrate my invention, Figure l isa perspective View showing the parts of my improvement detached fromeach other. Fig. 2 is a sectional view. Fig. 3 is a sectional view ofone form of coupling, and Fig. 4 is a sectional view of another form.

A represents a pair of pliers, the handle portion of one of the membersof said pliers being perforated for the reception of a bail, a, whichengages with the end of the opposite member so as to hold the jawstogether. The

0 jaws B B are constructed so as to be counter- Serial No. 165,471. (Nomodel.)

while the portions 1) will lie against the upper rim, (1. The portion ofthe block 0 under the recess D is cut away for the reception of acone-shaped follower, D, which follower is formed integral with ascrew-threaded stem, D, which passes through a female threaded opening,6, in the lower portion of the block. The outer end of the stem B isrectangular in cross-section, as shown at c, for the reception ofawrench. or hand-wheel or other suitable means for turning this. stem, towhich the follower is attached.

When it is desired to upset the end of a metal pipe, said pipe isgrasped between the inner sides of the reduced portion of the pliers,the end being about flush with the edgef. The bail a is then passed overthe end of the handle, which will hold the pipe securely in position.The end of the pliers is then inserted in the block, as shown in Fig. 2of the accompanying drawings. Thefolloweris then turned and the conicalportion thereof coming in contact with the end of the pipe will expandand turn the same upwardly so as to form a circumferential shoulder uponthe same. After this shoulder has been formed, the follower is turned inan opposite direction, which causes the same to retract so that thepliers can be removed from the block.

In Fig. 3 I have shown one form of attaching a coupling to the upset endof the pipe. Said couplings are placed over the pipe before the ends areupset.

In Fig. 4 of the drawings I have shown a manner of upsetting the endsofa pipe over a union-coupling, the connecting-pipe and the endcouplings being entirely covered on their inner sides by the soft-metalpipe:

The tool hereinbefore described is comparatively cheap in construction,portable, and there are no parts to get out of order or break, and thejaws of the pliers are thoroughly reenforced by the block when in use.

I claim-.-

1. The combination of a pair of pliers, the block 0, engaged thereby andadapted to receive the end of the pipe or tube, and a follower, D,substantially as set forth.

2. In combination with the pliers having a pipe-holding portion and aseat or offset adjacent thereto, the block 0, provided with a recess, d,and a follower with the conicalshaped head, substantially as shown, andfor the purpose set forth.

3. In a device for upsetting the ends of soft metal pipes, the pliersprovided with a pipeclamping portion, beneath which Opening is an offsetwhichis provided with a curved edge and an external enlarged portion,1), in com bination with a block having an opening adapted for thereception of the head of said pliers, and a follower having ascrew-threaded stem, substantially as shown, and for the purpose setforth.

4. In a device for upsetting the ends of softmetal pipes, a pairof'pliers provided with means for holding the end of said pipe, and a

